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Maggenti Mark, Crockett Douglas M, Rosen Eric: Method and apparatus for participating in group communication services in an existing communication system. Qualcomm Incorporated, November 21, 2003: TW563305 (34 worldwide citation)

A push-to-talk communication device to participate in a group communication net 100 is claimed. The group communication net 100 comprises a controller 104 to manage the group communication net 100 and interface with the push-to-talk communication devices 108, 112 and 116. A processor converts inform ...


2
Brewer Beth Ann, Ross David J, Rosen Eric C: Setting up a communication session within a wireless communications system. Qualcomm Incorporated, Brewer Beth Ann, Ross David J, Rosen Eric C, Freiwirth Raphael, December 17, 2009: WO/2009/151947 (9 worldwide citation)

In an embodiment, an originating communication device (132) within a wireless communications system sends a call request (134) to a server (600) to initiate a communication session with a target communication device (138), and also sends, along with the call request, a session description request, t ...


3
Razdan Ashu, Gill Harleen, Rosen Eric C: Method and apparatus for ran assisted location update. Qualcomm, May 27, 2009: EP2063677-A1 (6 worldwide citation)

An apparatus and method for efficiently updating location information of a mobile device (102) in a wireless communication network, such as a cellular network, is disclosed. The mobile device sends its location information through a route update message to a base station controller (104). This route ...


4
Maggenti Mark, Crockett Douglas M, Rosen Eric: System and method for providing group communication services in an existing communication system. Qualcomm Incorporated, May 21, 2003: TW533706 (5 worldwide citation)

The present invention is a system and method for providing group communication services in an existing communication system. Group communications are enabled by installing a communications manager in a data network, such as the Internet. The communications manager acts as a configurable switch, allo ...


5
Rosen Eric C, Maggenti Mark: Method of buffering to reduce media latency in group communications on a wireless communication network. Qualcomm Incorporated, Rosen Eric C, Maggenti Mark, OGROD Gregory D ATTN INTERNATIONAL IP ADMINISTRATION, September 7, 2007: WO/2007/101043 (4 worldwide citation)

A system and method for minimising latency for direct group communications, such as push-to-talk (PTT) calls, among a group of wireless telecommunication devices on a wireless telecommunication network. The wireless telecommunication device has a dormant state without an open dedicated traffic chann ...


6
Ross David Jonathan, Chandhok Ravinder, Balaoing Gil, Rosen Eric C: Method and apparatus for establishing an invite-first communication session. Qualcomm Incorporated, Ross David Jonathan, Chandhok Ravinder, Balaoing Gil, Rosen Eric C, HARNOIS Albert J Jr, September 2, 2004: WO/2004/075575 (2 worldwide citation)

The disclosed embodiments provide methods and apparatus for establishing an invite-first communication session in a wireless communication network. The method includes receiving an invite message from an inviter, forwarding the invite message to at least one invitee, receiving a response from one of ...


7
Rosen Eric, Sinnarajah Ragulan: Method and apparatus for avoiding simultaneous service origination and paging in a group communication network. Qualcomm Incorporated, November 1, 2003: TW560211 (2 worldwide citation)

A method and apparatus for avoiding simultaneous service origination and paging in a mobile operating in a group communication network provides for receiving a floor-control request, e.g., in short data burst (SDB) form, from a source communication device for initiating a group call, initiating a se ...


8
Rosen Eric, Maggenti Mark: Method and apparatus for reducing latency in waking up a group of dormant communication devices. Qualcomm Incorporated, May 11, 2005: TWI232647 (2 worldwide citation)

A method and apparatus for reducing dormant-wakeup latency in a group communication network provides for a significant reduction in the actual total dormant-wakeup time and the PTT {XE ""PTT""} latency perceived by the talker through caching the network-initiated wakeup triggers destined for target ...


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Maggenti Mark, Rosen Eric C: Methods and apparatus for efficient data distribution to a group of users. Qualcomm Incorporated, Maggenti Mark, Rosen Eric C, BACHAND Richard A, December 27, 2007: WO/2007/149821 (2 worldwide citation)

Methods and apparatus for efficient data distribution to a group of users. In an aspect, a method is provided for distributing information. The method includes detecting one or more requests for the information, determining whether the information is to be broadcast, and transmitting the information ...